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Lack of association between hla–dr2 and clinical response to methotrexate in patients with rheumatoid arthritis von Alarcóan, Graciela S., Billingsley, Lynn M., Clegg, Daniel O., Hardin, Joe G., Klippel, John, Luggen, Michael E., Polisson, Richard P., Singer, Joyce Z., Szydlo, Lillian, Willkens, Robert F., Acton, Ronald T., Barger, Bruce O., Dahl, Stephen L., Koopman, William J.

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